Saturn has its own unique brand of aurora that lights up the polar cap,unlike any other planetary aurora known in our solar system.This odd aurora revealed itself to one of the infrared instruments on NASA's Cassini spacecraft.Auroras are caused by charge

Illustrating the power of submillimetre-wavelength astronomy,an APEX telescope image reveals how an expanding bubble of ionized gas about ten light-years across is causing the surrounding material to collapse into dense clumps that are the birthplaces of>

A once critically endangered bat species,the 'Pemba flying fox',has made a dramatic return from the brink of extinction,according to new research.As recently as 1989,only a scant few individual fruit bats could be observed on the tropical island of Pemba,

NASA's Galaxy Evolution Explorer has lifted the veil off a ghost known to haunt the local universe,providing new insight into the formation and evolution of galaxies.The eerie creature,called NGC 404,is a type of galaxy known as "lenticular."Lenticular>

Make no mistake.The government's plan for energy corridors will result in the construction of massive infrastructure in and around our wild lands,national parks and national monuments without helping create a clean energy future.Have a say in this issue

A NASA spacecraft gliding over the battered surface of Mercury for the second time this year has revealed more previously unseen real estate on the innermost planet.The probe also has produced several science firsts and is returning hundreds of new photos

Saturn's rings may be more massive than previously thought,and potentially much older,according to calculations that simulate colliding particles in Saturn's rings and their erosion by meteorites.These results support the possibility that Saturn's rings>

The aging but intrepid Mars rover Opportunity is set to embark on a two-year mission it may never complete,a 7-mile(12-km)journey to a crater far bigger than one it has called home for two years,NASA said on Monday.The golf-cart-sized robot with a wobbly>

An international team,led by astronomers at the MIT Haystack Observatory,has obtained the closest views ever of what is believed to be a super-massive black hole at the center of the Milky Way galaxy.Sagittarius A* ("A-star"),long thought to mark the>>

Although most people imagine wolves chasing deer and other hoofed animals,new research suggests that,when they can,wolves actually prefer fishing to hunting.The study shows that when salmon is available,wolves will reduce deer hunting activity and instead